1981-02-01

Analytical Study on Engine Vibration Transfer Characteristics Using Single-Shot Combustion 810403

ABSTRACT

In order to demonstrate the generation mechanism of “combustion noise” separately from “mechanical noise,” the process of transfer in which vibration travels to each engine portion was analyzed through single-shot combustion of a propane-air mixture in the combustion chamber with the crankshaft fixed at a given angle.

The effect of the natural frequency of each portion of the engine on the vibration transfer characteristics is discussed by introducing a vibration transfer function. The transfer paths of exciting forces which are caused by the combustion are quantitatively clarified.

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